Grundy Thundy Share definition Flag When you bang a fat chick and your scrotom slaps against her thighs with a furious bang. Will was going so ham on Mrs. Vincent that the Grundy Thundy could be heard from miles away. Grundy Thundy by Gooch master December 23, 2013 0 0 Get merch Get the Grundy Thundy mug. Buy Now — $32.95 See more merch
